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Ecophysiological and Root Responses to Precipitation Manipulations JRN Personnel: Heather Throop (NMSU), Steve Archer (University of Arizona), Osvaldo
 

Summary: Ecophysiological and Root Responses to Precipitation Manipulations
JRN Personnel: Heather Throop (NMSU), Steve Archer (University of Arizona), Osvaldo
Sala (Brown University), Jane Smith (NMSU PhD student), Lara Reichmann (Brown PhD
student), Nate Pierce (UofA PhD student), Dan Hewins (NMSU PhD student)
Future changes in climate are likely to strongly affect plant physiological and growth
parameters, thus potentially influencing the nature (positive or negative) and intensity of plant-
plant interactions. Mesquite and other shrubs have encroached into desert grasslands at the
JRN over the past 150 years. Changes in precipitation (PPT) will likely influence future
dynamics of this shifting vegetation. This project focuses on leaf physiology and belowground
growth of honey mesquite (Prosopis glandulosa) and black grama (Bouteloua eriopoda) plants
within the Sala et al. rainout shelters and sprinklers that experimentally manipulate PPT at the
Jornada Basin LTER.
Ecophysiology
Aboveground
ecophysiological
parameters were assessed
with periodic field
campaigns during the first
and second growing
seasons of the PPT

  

Source: Archer, Steven R. - Savanna/Woodland Ecology Lab., School of Natural Resources and the Environment, University of Arizona

 

Collections: Environmental Sciences and Ecology